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Wire Brushing Masonry for Repainting

Discussion in 'Decorating and Painting' started by 816swim, 16 Mar 2021.

  1. 816swim

    816swim

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    Location:
    Dorset
    Country:
    United Kingdom
    I have read somewhere that you should not use a wire brush on masonry before repainting.

    However, the paint I had put on 2 years ago is coming off in sheets.

    My coats, Sandtex, were on some sort of Masonry paint , both coats are coming off together.

    Under them both , which has not come off, is a finish that looks almost like gloss paint and adhering well.

    Should I use a wire brush on this 'gloss' to give a 'key' when I repaint with Sandtex ?
     
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  3. D4N1EL

    D4N1EL

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    19 Oct 2011
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    Location:
    Merseyside
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    I use a wire wheel on an angle grinder, never had a problem.
     
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